This week we welcome various new lenses announced by Sigma, Olympus, Laowa and Zhong Yi Optics. Ricoh has also made a new version of the GR III large sensor compact camera.

Sigma 24mm F2 and 90mm F2.8

Sigma has unveiled two new lenses in its I Contemporary series of compact primes for mirrorless full frame cameras. They are available for Sony E-mount and Panasonic/Sigma/Leica L-mount, and feature the same metal construction that includes weather sealing, an aperture ring, a focus mode switch and a magnetic lens cap.
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